Digital plug-in timer



FIG. 1 depicts a view of the front of a digital plug-in timer depicting our new design; and,

FIG. 2 depicts a perspective view of the right side and front view of a digital plug-in timer depicting our new design.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a digital plug-in timer, as shown and described in the drawings. 